Line breaks and strings in dynamic javascript code

I'm building an AJAX-based site where all the content is dynamically fetched and then written to the page. Only problem is, I'm not a javascript wizard.

In this particular problem, I'm trying to build a text area with a Gmail-style Save / Discard Changes option. This text area gets written to the page, dynamically by editing the innerHTML property of a blank container as follows:

// noteID and noteText are already retrieved by making an AJAX request
// to a PHP script. The PHP script returns the noteText variable with all
// html special characters encoded, so that the quotes won't be any trouble

When the noteText variable does not contain any line breaks, everything works perfectly. But when there are line breaks and I press the "Discard Changes" button, I get a javascript error. Firefox / webdev toolbar says "Unterminated string literal" but I can't figure out why. Maybe the line break is splitting the javascript code, even though it's dynamic. Is there an easy way around this? Maybe some way to escape the line breaks without messing up the data that shows up in the textarea?

I actually solved the problem in a different way altogether; Instead of trying to encode/escape the \n characters somehow, I simply removed the second argument from quickDiscardChanges() and then retrieve it manually from inside the function.

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